Üldine informatsioon

Lisatud: 2019-01-03 16:34
Proovi tüüp: soil


Kontinent: Oceania
Riik: Australia
Asukoht: Gilderton (Banksia Woodland)
Ala: BWx
Ala kommentaar: Western Australia, Swan Coastal Plain, N of Perth, Gnangara-Moore River State Forest, Gilderton, S of Woodridge (settlement) Zonobiome IV: Sclerophyllous Woodlands & Scrub Subzonobiome (accord. to Mucina, unpubl.): Mediterranean Sclerophyllous Woodlands & Scrub Regional Azonal Biome (accord. to Mucina, unpubl.): Western Australian Kwongan Community: Verticordia nitens-Banksia menziesii Woodland Part of very extensive banksia woodland patch. Banksia woodlands are peinobiome communities on deep, nutrientdeprived sandy soils (so called Bassendean Sands) 2-5 My old. These soils (actually regolith) has been accumulating here for millions of years and have experienced gradual leaching, with hardly any notable soil rejuvenation. The woodlands are a kwongan scrub (undergrowth), overtopped by scattered Banksia and Eucalyptus trees. Grass trees (Xanthorrhoea preissii) can also become taller than 2 m. The tree Banksia species (B. attenuata and B. menziesii) are phreatophytes and their occurrence int his kwongan type is a result of their ability to reach ground water supplies as well as generally reasonable precipitation (around 700 mm MAP). The site is not under strict protection (conservation status), however, having the status of ‘state forest’ it is under management of the Department of Biodiversity, Conservation and Attractions (Western Australian Government). The vegetation is a typical low, sparse woodland with dense scrub undergrowth. None of the plants is taller than 5 m and therefore technically, no E3 (tree) layer can be distinguished. The trees concentrate in E2B and are also represented (as samplings and seedlings) in E2a and E1 layers. There are patches of mosses here and there, mainly concentrating on old burnt sites (Funaria sp.). The herb layer is very sparse and contains number of orchids (most of them still visible as basal rosettes only), numerous rosette-forming (mainly not flowering yet) alien Hypochaeris glabra (Mediterranean herb), and very numerous yet tiny, also alien, Heliophila pusilla and Ursinia anthemoides s.str. (both annual herbs of South African origin). Total cover: 50 % E2b: Banksia attenuata 15% (4-5 m) Banksia menziesii 10% (4-5 m) Eucalyptus todtiana 10% (5 m) E2a: Hibbertia hypericoides 20% Xanthorrhoea preissii 10% (grass tree) Banksia menziesii juv. 5% Banksia attenuata juv. 5% Petrophile sp1. 6% Pimelea sulphurea 1% Melaleuca sp. 5% Isotropis cuneifolia subsp. cuneifolia 1% Gompholobium tomentosum 1% (pea) Jacksonia sp1. 2% (pea) Petrophile sp2. 2% Hakea costata 3% Banksia dellanneyi subsp. pollosta 2% (det. K.R. Thiele) Hakea prostrata 2% Hakea lissocarpa 1% Hibbertia huegelii 5% Jacksonia sp2 2% Daviesia divaricata subsp. divaricata 2% Verticordia nitens 5% Stirlingia latifolia 2% Calectasia narragara 1% Macrozamia fraseri 1% Gastrolobium capitatum 1% E1: Hypochaeris glabra 5% Drosera erythrorhiza 2% Mesomelaena pseudostygia 2% Calanthe flava 1% Drosera pallida 1% Mesomelaena tetragona 2% Laxmannia squarrosa 1% (det. P. Macintyre) Ursinia anthemoides 1% Heliophila pusilla 1% Stylidium sp1. 1% Stylidium sp.1 1% Centrolepis sp. 1% (annual Restionaceae) Anigozanthos humilis 1% Anigozanthos manglesii 1% Drosera menziesii 1% Loxocarya sp. 1% No anthropogenic disturbance; occasional crossing by kangaroos (spoor suggesting that it is the Western Grey Kangaroo). No obvious traces of grazing or browsing. The site is close to a dirt (sandy) road, but only the edge of the road is disturbed. The site might have gone through burn some 10-12 years ago. Leaf litter is sparse, concentrating (in form of ribbons) mainly around the trees. There are logs of (mainly burnt) Banksia and Eucalyptus on the site. The sampling was done within the distance of at least 10 m of the forest edge (in any direction), using the prescribed 30 x 30 m design. Moving through the vegetation was easy.
Laiuskraad: 31° 21' 21'' S
Pikkuskraad: 115° 36' 26'' E
Koordinaadid: -31.35583 115.60722
Kõrgus merepinnast: 55 m
Ökosüsteem: forest
Bioom: mediterranean forest, woodland and scrub
Elukoht: woodland

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